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Bread

Boston Brown Bread

A steamed loaf made from cornmeal, rye flour, graham flour, molasses, sweet milk, sour milk, baking soda, and salt.

From an old cookbook · modernised transcription
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Why it works: Rye and flour match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 1,320 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Boston Brown Bread

Ingredients

Directions

Prepare

  1. In a large bowl, combine cornmeal, rye flour, and graham flour.

  2. Add molasses, sweet milk, sour milk, baking soda, and salt. Mix thoroughly.

Steam and serve

  1. Pour the mixture into a greased loaf pan.

  2. Steam for 3.5 hours.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Rye + flourtop 8% of all pairs
    Smell alikestrong
    Cooked together1,320 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Rye + milktop 12% of all pairs
    Smell alikemoderate
    Cooked together918 recipes

    Shared aroma: ethyl 2-methylbutyrate (fruity, apple).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + molassestop 16% of all pairs
    Smell alikemoderate
    Cooked together10,429 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  5. Rye + molassestop 16% of all pairs
    Smell alikelow
    Cooked together804 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

Flour and milk barely smell alike, yet cooks put them together in 78,219 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Cornmeal
Gives the bread its coarse, hearty texture and golden color.
Rye flour
Adds structure and a dense, moist crumb with a distinctive flavor.
Graham flour
Contributes bran and wholegrain texture, adding body to the crumb.
Molasses
Adds sweetness, moisture, and a deep color and flavor.
Baking soda
Reacts with the acidic sour milk to produce carbon dioxide, which leavens the batter.
Sour milk
Its acidity activates the baking soda, helping the bread rise and tenderize.

The step that matters

Steam for 3.5 hours. Steaming gently cooks the batter through with steady moisture, so the bread sets without drying. Keep the pot's water topped up, since a low water level can leave the loaf underdone or dry.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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